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Finding the Fourth Proportional to 647,163.88, 893,116.57 and 360,686.02

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Solution

The fourth proportional to 647,163.88, 893,116.57 and 360,686.02 is: 497,763.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,163.88 : 893,116.57 = 360,686.02 : x
  2. Step 2: Convert to fraction form
    647,163.88/893,116.57 = 360,686.02/x
  3. Step 3: Cross multiply
    647,163.88x = 893,116.57 × 360,686.02
  4. Step 4: Simplify right side
    647,163.88x = 322,134,661,029.35
  5. Step 5: Solve for x
    x = 322,134,661,029.35/647,163.88
  6. Step 6: Final answer
    x = 497,763.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.